文章基本信息

标题：Bauxite-supported Transition Metal Oxides: Promising Low-temperature and SO2-tolerant Catalysts for Selective Catalytic Reduction of NOx
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作者：Xiuyun Wang ; Wen Wu ; Zhilin Chen 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2015
卷号：5
期号：1
DOI：10.1038/srep09766
语种：English
出版社：Springer Nature
摘要：In order to develop low-temperature (below 200 °C) and SO₂-tolerant catalysts for selective catalytic reduction (SCR) of NO_x, a series of cheap M/bauxite (M = Mn, Ni and Cu) catalysts were prepared using bauxite as a support. Their SCR performances are much superior to typical V₂O₅/TiO₂, the addition of M into bauxite results in significant promotion of NO_x removal efficiency, especially at low temperature. Among the catalysts, Cu/bauxite exhibits wide temperature window over 50–400 °C, strong resistance against SO₂and H₂O as well as good regeneration ability in SCR of NO_x. NO_x conversion is more than 80% at 50–200 °C, and N₂ selectivity is more than 98%. Cu/bauxite can serve as a promising catalyst in SCR of NO_x.